#include<stdio.h>
#include"stdlib.h"
#define N 10
void fun()
{
        int l,m,t;
        char c; 
        scanf("%d",&l);
        scanf(" %c",&c);
        scanf("%d",&m);
        if(c=='+'||c=='-'||c=='*'||c=='%'||c=='/') 
        {
          if(c=='+') t=l+m;
          if(c=='-') t=l-m;
          if(c=='*') t=l*m;
          if(c=='/') t=l/m;
          printf("%d%c%d=%d\n",l,c,m,t);
        }
        else printf("错误!\n");
}  
 
 int
 main(void)
 {
 int i;
 char quit;
 fun();
 scanf(" %c", &quit);
    return 0;
 }